Can I upgrade to the navagation system in my .by buying a used head unit and
screen,with all the buttons, is it plug and play?
It is not plug and play, the BCM will have to be reprogrammed so recognize the new unit. You might have better luck going aftermarket unit, it will be a stand alone system that can be rewire into your vehicles system, talk to someplace like Car Toys or Best Buy on what would be the best unit for your vehicle with the goodies you want.
I got the head unit and screen real cheap. Is all I would need is to get the nvm reflashed after I change those two parts.its only $90.00 to refash
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